Wǒ bìzhe yǎnjinɡ dōu nénɡ ɡàn.

我闭着眼睛都能干。

I could do that with my eyes closed.

Notes:

我(wǒ): I

闭着(bìzhe): to close

眼睛(yǎnjinɡ): eye

都(dōu): to emphasize

能(nénɡ):can

干(ɡàn): to do

Example:

A：这个你会做吗？

     Zhèɡe nǐ huì zuò mɑ？

     Can you do this?

B：我闭着眼睛都能干。

    Wǒ bìzhe yǎnjinɡ dōu nénɡ ɡàn.

    I could do that with my eyes closed.